Bump pip in /geoportal/geoportailv3_geoportal/static-ngeo/ngeo

Bumps [pip](https://github.com/pypa/pip) from 9.0.3 to 21.1.
- [Release notes](https://github.com/pypa/pip/releases)
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@9.0.3...21.1)

---
updated-dependencies:
- dependency-name: pip
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

geoportal/geoportailv3_geoportal/static-ngeo/ngeo/requirements.txt

@@ -3,7 +3,7 @@ codespell==1.12.0
 glob2==0.6
 htmlmin==0.1.12
 Mako==1.0.7
-pip==9.0.3
+pip==21.1
 requests==2.20.1
 setuptools==39.0.1
 transifex-client==0.12.5  # rq.filter: >=0.14